Power operating mechanism for typewriters



J 1932- E. T. COPE ET AL ,8

POWER OPERATING MECHANISM FOR TYPEWRITERS Filed y 1925 8 Sheets-Sheet 15] wue "tow June 21, 1932. v I COPE ET AL 1,863,744

. 1925 8 Sheets-Sheet 2 v o nuznio r a 4 e erzc f z JFM A Wm June 21,1932.

E. T. COPE ET AL 8 Sheets-Sheet 3 Filed July 27, 1925 w O t n G U m agate a, WWW #wlAw WW POWER OPERATING MECHANISM FOR TYPEWRITERS Filed y1925 8 Sheets-Sheet 4 J1me 1932- E. T. COPE ET AL POWER OPERATINGMECHANISM FOR TYPEWRITERS Filed July 27 1925 8 Sheets-Sheet 5- s Q Q l\l I I I I l I Ill June 21, 1932. E. T. COPE ET AL PbWER OP ERATINGMECHANISM FOR TYPEWRITERS File y 7, 1925 a Sheets-Sheet 6 J1me 1932- E.T. COPE ET AL POWER OPERATING mommsm FOR TYPEWRITERS Filed y 1925 8Sheets-Sheet 7 I I I arrow June 21, 1932. E. T. COPE ET AL 1,863,744

I POWER OPERATING MECHANISM FOR TYPEWRITERS Filed July 1925 8Sheets-Sheet 8 awuemtow Jaye 760, 6

Patented June 1 21,1932 V The invention permits quick and easy operamien r. corn, RALIHfn'rARKmsoN, Ann FREDERICK m. Peron, or nnrnorr,

MICHIGAN;

ARE

AssiGNoRs 'ro ELLIOTTFISHER COMPANY, A CORPORATION or DELA- rowEROPERATING MEcHANis uroR TYPE-WRITERS i Application filed July 27, 1925.Serial manner The invention'relates totypewriters, book.

keeping or .billing machinesiand thelike and has among its ob ects toprovide power'means for shifting the machine...

In billing machines such as are now in common use it is necessary fortheoperator to manually shift the typewriter, or head. as

it. is 'commonlycalled, in orderto clear the 1' platen preparatory toreceiving the ledgersheet and bill. -Such manual operation is necessaryafter each bill is printedand since the head is very heavy the-repeatedshifting 3- of the head causes fatigue of the operator.

. Our invention provides power means for shifting the head which may ibe readily attached to the machines nowlin; common use.

tion of the billing machinescalling upon very little of theoperatorsstrength with-the resuit that the operatorwill notbecomefatigued as in the use of the ordinary machine. r=

It is ordinarilynecessaryto train an operator for. several months beforehe is able to oper.- ate the ordinary billing machine .andbecause of theshifting operation of the head an operator cannot usually operatejamachine for a longer period of time than a few years, after which timehemust be relieved by a new operator This is manifestly an expensiveprocedure. With our invention the fatiguing operations of the machineare power actuated with the result-that the length ofservice ofanoperator is not restricted because. of

any fatiguing effect incidentto operating the machine. i a a i A furtherobject of the invention is to provide power meanslfor actuating theunder carriage of the machine whereby the carriage is rapidly andsmoothly accelerated Provision is also made'to cpuickly and Withoutshock to the machine, a

' as tobring the machine to a standstill at the proper place. Theinvention also includes power means for actuating the head carriagewhereby it is moved to the proper position and brought to restwithoutinjurious shock to the machine. Means is further providedfor l"pneumaticallyactuating the carriages of the machine including meansforvarying the point of cut-off of the fluid beingsupplied sorb the inertiaso Valve end;

I to themotor wherebythe most efficient oper ation of the machine shockeliminated. i The figures we have described show the ap may be obtainedand piication of our invention to one commercial riages which must bemoved periodically dur ing operation.

With these and other objects in view, the.

invention resides in the novel features ofconstruction and combinationand arrangements of palts as more fully herelnafter described andclaimed.

Referring to the drawings {Figure 1 is a perspective view of the frontand right sideof a billing machine showing our invention attachedthereto;

Figure .2 is a perspective ofthe side and rear left of the machine;

Figure 3 is aperspective view of the front and left side. of themachine;

Figured is a perspective view of the rear and right side of the machine1 Figure5 is an elevation of the cylinder and .associated mechanismshown applied to the left side of the machine; a

t Figure 6 is a plan viewthereof;

Figure 7 is an'end elevation thereof; Figure 8 is an elevation of thecylinder andassociated mechanism shown applied to the right side of themachine;

. Figure 9 is an end view thereof;

Figure 10 is a plan thereof; Figurell is an elevation view ofthe headcylinder; V Figure 12 is a plan thereof; V Figure 12 is an endviewthereof at the Figure 13 is an theopposite end v Figure 14 is aperspective viewof the tripping mechanism. i

In the drawings 10 indicates a typewriter or head supported by rollers11 which .en gage tracks -12of the carriage 13. The latter carriage isslidably supported by rollers end elevation thereof at 14 whichengagethe tracks l5 of the bed 16. i

P irE S E PATENT OFFICE 7 The bed 16 may be fixedly supported by a table 17 The bed, leis formed with the horizontal platen 17 foraccommodating a ledger sheet which may be mounted at its oppositelongitudinal edges on the projections 18 carried'by'an endless carrier19, the projections 18 passing through appropriately spaced openings ofthe ledger sheet (not shown).

rotatably actuable by the member 21 to position the ledger sheetlongitudinally forwardly or rearwardly ofthe machine in the customarymanner. The typewriter is provided with the usual operatingkeys 22. rearrollers 14 of the carriage, as best shown axle 23 upon which is alsomounted the brake drum 24', the latter always rotating with the axle 23'25 is a brake band having a braking surface cooperating with the brakedrum 2 1 so that whenthe brake band is held fixed or is prevented fromrotating with the drum, a braking etiect is produced which preventsrotation of the rear rollers 1 and consequently stops the movement ofthe carriage V 13 longitudinally of thebed For hold ing the brake band25 stationary the latter is provided with a peripherally knurled oradaptedto be lowered into engagementwith the knurled portion 26 of thebrake band oi raised free of engagement therewith upon rotation of thebrake rocker rod 28. Rotation or'tlie brake rod to apply the brake maybe trol 29-, which operates to press downwardly on a rod 28 (see Fig.6). The rod 28 is I connected at its ends by" links 28* with the brakerockerrod 28,so thatdownward movement of the rod 28 rotates the rod 28through links 28 sufficiently to release the brake. Our inventionprovides means for automatically controlling the action of the brake asherew inafter described. ()rdinarily aspring 3O coiled about the brakerod 28 serves to'maintain the pawl 27 in engagement with the brake bandso as to prevent movement of the Allcf the foregoing described parts areof er preferred Constructionb a In operation f the machine as thus fardescribed, to clear the platenl'? preparatory receive printing of thetypewriter, the operator presses downwardly on the control 29 whichrocks the'brake rocker rod 28 to release pawl-27 from engagement withthe knurled portion 26 of the brake drum 25, thus leaving the carriage'13 free from brale i ing action. The operator thenpusheson the :head'10to move the same and the carriage 13 rearwardly until thecarriage'clears the platen 17, the rollers 14 at the front and rear of thecarriage rolling on the tracks of the The carrier 19 passes around endrollers I The in Figure 2, are mounted to rotate with the serratedportion 26 engaged by a pawl 27 v effected by pressing downwardly on theconcarriage 13 without first releasing the-brake. V

the usual construction or may be of any othto inserting a' ledgersheetor other paper to bed 16. At the'same time, or previously 01'thereafter, the head 10 is'moved to one side (according to the travel ofthe typewriter), such as to the left, against the action of the coilspring30. The latter spring may be of usual construction and acts uponthe spool housing 31 to tend to wind thereon the steel tape 32, one endofwhich'is attached'to' the typewriter. ried by a bracket 33 fixed tothe carriage 13. The platen 17 is now cleared to receive the ledgersheet, above which is usually placed the bill with a sheet 01 carbonpaperin be- The spool, 31 is rotatably cartween. The ledger sheet may beperforated along its longitudinal edges to receive the projections 18. la i then presses downwardly on control 29 to release the brake and pullsfor The operator wardly the head 10 and carriage 13 to bring thetypewriterabove the platen and suiiiciently forward to suit vthe reachor the operator so that he can best operate the keys 22. If the properoperating position of the typewriter is'not such as'to alignthe printedtype with the proper line of the ledger sheet, then it is understoodthat the ledger sheet may be ad justed either forwardly or bac'kwardlyby reason of the member 21 andnthe endless carrier19. Ordinarily eachoperator places the successive ledger sheets on the platen so'that theproper line, to receive the type, is the same distance back from thefront; marginal edge of the platen,'whereby the head :is pulledforwardly to thesame point each time; Ho'wthe head being moved undertlieiiniluence of the tape 32 and spring 30 in the customary manner;After printing one or more lines on the ledger sheet the head 10 andcarriage '13are then pushed rearwardly and the head moved to the leftagainst the action of the spring 130, to clearthe platen for receivingthe next bill. whereupon the above operations are repeated.

"From the foregoing description it is apparent that the operator mustmove the head 7 and carriage many times a day as the platen must becleared after each bill is printed by the typewriter. Th e movement ofthe head andcarri'age forwardly over the platen calls only for anaturalimovement ofthe body, and while our invention is equallyadaptedto actuate the machine in this direction by I powerit isnotdeemed necessary with the for after the rearward movement "of theseparts, to move the head to theleft to restore thepa-rtsto theirinitialposition. In short,

f therefore directed to rear and to the le rate of flow of the fluid lthe passage of fluid from the valve cylinder of the valve rod cylinder35.

itfis theclearing of the platen which is a strain on the operatorandourinvention is s provide power means for automatically moving the head andcarriage rearwardly and laterally.

Our invention thus includes power means for simultaneouslv moving thehead to the t, or to itsinitial position. Furthermore, the parts arequickly accelerated and quickly decelerated without any injurious shockto the delicate mechanism of the typewriter and other parts ofthe'machine. It is in the furtherance of these and other objects thatour invention comprisesthe following mechanism: p Q 1 Supported atopposite sides of the bed 16 are the main cylinders '34 and'35respectively. The cylinder 34 is shown bestin Figures'Q, 5, 6 "and 7brackets 36, the cylinder ably through a piston rod a limited amountofrelative movement between the parts. Adjacent'the front end of 37, fixedto the bed16. Within cylinder 34 is a valve cylinder 40, the cylin derscommunicating bythe port 41. "42 indicates a supply pipe for fluid underpressure, such as compressed air, the fluidpassing on its way tothevalve cylinder 40 through the throttling valve 43, the lattercontrolling the from a suitable supply to the valve cylinder. Forcontrolling through port '41 to the cylinder 34, the valve 44 isprovided andis adapted to be reciprocated by a valve rod having itsopposite end slidably supported by the bracket 46. The valve rod 45 isengageable in bracket 36, whereby rotation is prevented; Thus, thenotches 66, referred to-hereinafter, arekept facing downwardly in theirproper position, a be apparent. 42 indicates the exhaust portcommunicating with the as will presently valve cylinder. In the positionshown in Figure 5 the piston cylinder is open to the exhaust byway ofthe port 41, exhaust port 42* andth'eexhaust pipe 42". A port 42 is alsoprovided in the cylinder 34,'said port leading to. Port 42 is indirectlycontrolled by the valve 44 to admit fluid tocylinder 35 communicatingwith a pipe 42 and also to exhaust cylinder 35 by way of port 41 andthence through the pipe 42". The valve rod'45 carries a collar 47adjustable thereon byset-screw 48. 49 isfa valve actuating cross rodrotatablysupported in bearing the necessity toand comprises thesupporting is a piston 38 connected prefer aloose universal-like jointwith 39, the loose joint permitting against an adjustable provided witha key 45" brackets 50, said rod having at one end the yoke 51 bearingagainst the collar 47 for actuating the valve rod 45. Rigidly secured tothe side of the bed 16 is a bar 52 having a plurality of spaced notches53 along its lower edge. Slidably mountedon said bar is a bellcranklever clip 54 upon which is pivotally mounted upon the pivot pin55 thebell-crank lever 56 provided'with a roller 57 engageable by acam 57secured to the carriage l3and having an incllned under surface 57 forengagement with the roller 57 Vided with a stop mechanism forpositioning it at any of the notches 53, this m-echanisin comprising alatch 58 connected by a pin 59 spond with the notches v s of thefpistonrod 39 bears- The rear end 39 against aspring67 -housedlwithinthebushing 68, the other end of the spring bearing member 69 threadedwithin the bushing 68 7 0, whereby the compression of themayberegulatedi j The spring 66 end 39" of thepiston rod in spring 67spaced relation leverstop "63 havin a keeps the vol as the carriage 13is moved rearwardlyp The clip 54 is prothelatch 64a plurality of notches66 relatively spaced to corre- V anclactuable by thenut T with themember 69 until fluid is admitted to the piston cylinder. The bushing 68carries the nutsil, between whichis clamped the anglebar 72,Wl1lCh baris secured to the car r1agel3 for actuating the same. 7 is a collar aclustable along the piston .rod 39 by setscrew 74, the collar bearingagainst the downwardly bent part 7 5 of the brake slide rod 76,

the part 75 being formed with the opening 7 7 for slidably' receivingthe piston rod. The brake slide rod 76 slidesin the bearings 78 and isformed with hook-shaped portion 7 9 for receiving one end ofthe-bell-crank lever 80 pivoted to rocir'in the fixedbearing 81. Theforward part of the lever 80 may pass through the frameofthe machine toailorda secondbearing (not shown). The other end 80' of the bell cranklever 80 is connected through a link 82'with a lever 8-3 clamped at 84with the brake rockeinrod28. The lever 83 may also receive the rod 28(see Figures 5and6).

side as the parts are arranged for purpose of On the other side ofthemachine, or right illustratiomit'is preferable to provide a sec- 7 0ndcylinder 35 which operates simultaneously with the cylinder 34 toequalize or balance the thrustimparted to the carriage 13 e n 11 1tspaced notches and thus prevent any tendency to'twist'the carriage asit is moved. The cylinder is a piston 85, asbefore, and a As beforestated, the valve 44:

provided with pistonrod 86. of the valve cylinder serves to admit fluidsimultaneously to act on the also through the exhaust and inlet pipe 12to act on'the piston "When the valve 4 1 exhausts the cylinder 34 italsoexhausts cyl 7 f inder 35' through the pipe 12 as aforesaid.

The pistonrod 86 is connected to operate the angle rod 87 which issecured to the carriage 13. a i

' For moving the head 10 transversely of the platen 17 to restore thetypewriter to its ini tial position, the following mechanism isprovided: Suitably secured, along the rear of the carriage 13 is acylinder 88, the-securing means as ;shown comprising any suitable 5;clamping brackets as 89 and 90, respectively embracing the cylinderandibeing secured conveniently to parts ofthe carriage as to theuprights 91 hasa valve cylinder 98 with. in which is a: valve 94.- forcontrollingthe supply'of fiuid'from the intake-pipe 95 9'6 is the inletport and 97is the passage between the valve cylinder 93 and the cylinder88.

The cylinder 88 atfiVVhen the valve 94: is moved to the right, as

flewedinFigure 11, the cylinder 88 exhausts through the passage 97, port98and exhaust pipe 99. As before, the inlet 95 is preferably, controlledby athrottle valve'1-00'whereby the rate ottiow of the fluid suppliedthere through may be readily controlle d.- The pipes 95 and 99rarepreferably formed of ,fie-Xible tubing to permit unrestricted movementerthe cylinder 88 and nii'desired, the source of compressed air may hein the form of a pressure tank (not shown) secured below the table 17and to which the supply pipes42 and 95 lead. A- slot 101-may be cutthrough the table to acconnnodate the dopipes 95 and 99 andpermit theirmovement in accordance with the travel of the-carriage Within thecylinder 88 is a piston 102 0a erative through a piston rod 103 to movethe angle bar 104:, one end of which is secured at 105 totherear faceofthe head '10, and the other'end of which is bent at 106 to engage thepiston rod 108, the clamping nuts 10'? main taming the parts in engagedrelation. Op-

- 'eratively connected with thevalve 94L- isthe valve rod 108 which hasa'splined supporting engagement lntermediate its length, at 109,

with an extension 110 of the bracket89f The endot the valve rod isprovided with a plu- 111 selectively engaged by the valve rod stostructed likev the stop '68, having: a spring controlledlatch'113operated'by a control ,button 11 1'. Connected with thes'top112' a isleeve 115 is mounted slidable. with the stop piston 38 and and 92respectively, the bracketsbeing best shown in Figures 4 and 11.;

the carriage. 1 If 1112 which is con v 112 onthevalve rod: 116indicatesacollar adjustably mounted on sleeve 115- by. ase't-f screw 121. Thecollar llo isadapted tobe engagedby the valve tripping bracket 117-.Thelatter andhas a bifurcatedpart 1:18 which straddles the valve rod108.

119 of the arm .120 loosely encircles-the sleeve 115, as shown in Figure12. 7Thelower:end of'the arm 120 is secured to the head-stop 122;

bracket is tastenedto the bar 10 1 As the head 10 moves tothe right asviewed'in' Figure 11, the bifurcated part. of the valve trippingbracket: strikes the collar 116 to move the I valve rodtothe rightto'actuate the valve'9 1, thereby is cuttingofi the supply ot fiuidtothecylinder 35 and exhausting the same.- The upper end which isadjustable along thecarr-iage bard-23, i i

the latter having a plurality of notches 12 1 spaced correspondinglywith the spacing 1 of provided} with i notches 111. The stop122-is aspring-controlled latch125 engageable with sin the notches 124C andcontrolled by the button- 7 11.6 beadjusted on the sleeve 115 to--prevent. movement of the valve rod" 108 sufli ciently to cause the valve941 to strike the end of the'wall. Thus, by properly positioning; thecollar 116, the bracket 117-williengage the collar andmovethe sameto theright (as viewed in Fig; 12), the head 10 engaging stop 122 (and hencepreventing further movement of the valve'rod) before the valve 91 hasbeen movediinto engagement with the end wall ofthe-valve cylinder.

7 Depending from the bracket=89 is=- 127 forming a pivotalbearingl28-for the By reason oi theset-screw 121-thecollar;

bell-crank lever 129. One end 'of the latter lever is connected with thedownwardly extending rod 130 terminating in the'hook portion-131. Theother end ofthe bell-crank is: bifurcated at tostraddle'thevalve rod 108and is adapted to operatively engage a" valve collar 132, the latterbeing adjustable along the valve rod bythe set sc'rew 133.- Preferably aspring 134 normally-retains the bell-crank 129 and the rod '130'in thep0sitionshown in Figure .11.

As shown in Figure 4: the rod 130 extends downwardly between thebifurcated parts'o-tf bracket 136 which is secured to the under:Eaceofthe angle rod 87. The hook portion 131 as shownin Figure 11 isadaptedto havesliding engagement with an actu'at ing bar 137 V as shownin Figure 1 whereby the latter bar can pull downwardly on the rod 130atfany position of the hookportion 131 a guide along the=bar'137.' ;Thebar 137-is supported adjacent 1ts opposite ends by the rock arms; 138,the latter arms being mounted upon the rod 139 rotatable in bearingbrackets 1%10 se cured to the bed 13 of the machine. 7

rear otthe "Asishowni i l F gllre 4th valve actuating i crossrod49,extends transversely across the machine, one end ofthe rodactn andtheother end being bentat 141 (see Fig; and 42, the latter leadingto-cylinder and y ure 8). 142is a link connecting the bent end theformer to the cylinder 34. The fluidthen 141 with the actuating bar-.13750 that when acts on the piston 381130 cause the latterto -'thecross rod49 isgiven apartialrotation by move to the left asshown inFigure 5. Thethe actuating mechanism to be described the first movementof the PlSlIQZl rod 39 causes by reason of the link l42r Swmging of theto the left, thereby acting through the belldownwardly, therebyactuating the valve rod rod 28 against the action of spring 30 and ashereafter described. Preferably, a rcleasethe brake band 25 fromengagement "spring 143 asshown in Figure 10 iscoiled withthe pawl 27.The carriage 13 is then a itslnitial'positionafter beingactuated. Fortinned movement of the piston rod 39, the

; other end of the jcablelextending to a suitenough torn ove the bushingand angle bar able hand or foot actiiatingmechanism. The 7 and yet beingof sufficient strength to re- 35 latter mechanism is preferably pedaloperturn the piston rod and piston when the lat ShOWIl connected n u tng l r k causes the anglebar 72 to be moved rearwardlever 146 pivoted at147 to a .fixed support 1y of the machine or to the left as viewed in148,and provided with an end 149 adapted to Figure 5, carrying with itthe carriage 13 limiting the swing of the bell-crank. A the piston 38and at the sametime to exhaust after being actuated to pull the cable 14side of the machine is at the same time ex- 100 and involves littleexertiononthepart of stationary, thus producing V raking with the no"the operatorand no fatiguing exertion as rebrake drum 24. Since thebrake drum 24 is on the cable 145. The latter cable rocks the oppositesides. preventing any tendency to 5, by the engagement of theyoke 51,with the the position of the roller 57 is variedjto effect 125 i f 7left, permitting the compressed fluid to flow spending position. alongthe valve rod 45. 3

ating "the valve rod 45-:as described above, from thevalve cylinder40past the ports 41 bent end141 will swingthe actuating bar137 thecollar 7 tomove the brake slide rod 76 bar 137 will cause the .I'Od'130to be. pulled crank 80 and link 82 torockthe brake rocker outthecross rod 49 torestorethe same to free from' the braking action. Uponconactuating'thecross rod 49 any suitable trippart 75 of the slide rod76 engages the nuts ping mechanism may be provided." Prefer- 7 1. Duringthe aforesaid movement of the ably the cross rodjis provided with alever piston rod, the-spring; 67 is compressed with- 144 to which a"cable 145. is connected, the in the bushingtSS, the springnot beingstrong ated, the cable. 145 extending downwardly at ter is not beingsubjected to the air pressure. therear of the machine to a pointconvenient the purpose of which will be presently apfor operation. InFigure 14 the cable 145 1s. parent. Further movement of thepiston rod beactuated by the foot of the operator to and the head 10 mounted thereon.The carefiect the movement of the carriage and t pe; riage continues tomove. until the cam surwriter. The bell-crank may have abentporface 57engages the roller 57, whereby the 95, tion carrying the adjustable pin151 valve rod 45 is moved to the right to actuate adapted toengageafixed bracket 152 f r the valve 44 to cut off the supply offluid tospring 153 serves to restore the b llr n the c linder-'34. The cylinderon the other In operation, after the carri g an typ hausted through thepipe 42, ports 41 and 42' writer lltIVB bBBIlIIlOVBd forwardly manuallyand the 42 As 50011 as the, air presinto proper position above-theplaten 17,13 sure is relieved in the cylinder .34 the spring act uponthe ledger sheet, bills, etc., Wh ch 67 acts to move thecollar 73 andpiston rod ha ep evi u ly been placed on he p e the 39 forward, therebypermitting the spring 30 y 22 f ypfi are actuated in the 'to freelyactas it moves the slide rod 76 and customary manner to printthedesiredficharrock the brake ro ker rod 28 to engage the acters on theledger sheet, bills, etc. The oppawl 27 with theserrated portion 26 of.the oration thus far isthat customarily pursued brake hand 25. wherebythe latter is held ferred to before. When the operator desires mount don the axle 23 carrying thecarriage to clear the platen by returningthecarriage rollers 14, braking of the drum 24 causes 13to the rear of themachine, and also to move the carriage to stop its rearward movement.

the typewriter or head 10 to theside ofthe. It should beunderstood thatthe cylinders machine, as to the left as viewed in Figure '34and 35actsimultaneously,being controlled 1, the operator tripstheend 149 ofthe bell by the single valve. 44. The thrust rearcranklever 146, withhis foot, thus pulling 'wardly on thecarriage is thus equalized at valveactuating cross rod 49, by rea on f twist the carriage during. the powerstroke. n the lever 144, the cross rod actuating the con- For stopping.the carriage at any point de- 7 trolling valves for the variouscylinders as sired, the button 60 is. actuated to move the follows Oneend of thecross rod moves the clip 54 at any point along the bar 52,correvalve rod 45 to 'the left. as viewed in Figure spending to one ofthe notches 53. Thus.

collar 47; Movement of the valve rod simulcut-oft at any desired pointwith respect to taneously throws the roller 57 upwardly, by the travelofthe carriage 13. After the clip reason of the stop 63 acting on thebell-crank 54 has been adjusted to the desired position, lever 56, andalso moves the valve 44 to the the stop 63 is likewise adjusted .toacorretain a speedy movement of the carriage.

large initial force must, however, belsuch that movement of thecarriage.

By regulating the throttle valve 13, the speed oftravel of the carriagel may Since the carriage and the head thereon is very massive, it willbe apparentthat it is desirable to apply 'a largeinitial force toproduce quick acceleration of the carriage and thereafter to applysufficient force to mainit will not produce an'injurious shock to therather delicate parts of the typewriter *and machine in general. Afterthe carriage is brought up to its travelling speed a further the energyof 'nertia to bring the carriage vention satisfactorily meets all of theaforementioned.difiiculties, affording speedy movement and stoppiner ofthe carriage without injurious shock. By reason of the throttle valve43, when the valve 44 is actuated to supply the compressed fluid to thecylinders 34' and 35, the full pressure of the fluid will act againstthepistons38 and 85. Thus, the carriage is rapidly accelerated.Thereafter, however, the throttling etfectofthe valve 13 prevents suchcontinued high pressure against the pistons since the latter are travelling longitudinally of their respective cylina ders at such a rate as toeffect a throttling 1 action of the incoming fluid. lhus,'by regulatingthe valve 43, the speed of travel of the carriage may be regulated,atthe same time affording full .fluid pressure at the initial Asaforesaid, the point of cut off and exhaust may also be'valied todetermine the point at which the carriage brake is to be applied. Tl1latter brake quickly brings the carriage to rest without any shockto themachineparts.

Atthe same time that the cross rod'iS) .actuates the valve rod 4:5, italso swings the bar 137 downwardly, by reason of the link 142 actuatedby the bentvend 141 of the cross rod. The downward movement of bar 137tween these parts beingaetfected by the hook 131. The rod 180 actsthrough the bell-crank 129 to rock the latter to cause the bifurcatedportion 13.5 to move against the valve collar 132, thereby moving thevalve rod 108 and valve 9e tothe left as viewed in Figure 11. Movementof the valve brings ports 96 and 97 into communication, thus supplyingair from the pipe 95 to the cylinder 88 to act upon the piston 102. Thelatter is thereby caused to move transversely of the machine orv to theright, as viewed in Figurell, the piston. rod 103 acting on the bent end106 of bar 104 to move the head transversely of the move ment of thecarriage 13 against the increasing resistance of the spring When thebell-crank 129 moves the valve rod 108 to actuate the valve, themovement of the valve rod is limited bythe stop 112 striking the end'119of arm 120. be controlled] sleeve 115,, together the head 10 strikesthe-head stop 1122, thus causingthe valve'rod 108 tobe returned toitsproblem is presented in quickly absorbing to rest without shock to themachine. Our in r the ledger sheets, etc.

carries with itthe rod 130, engagement be ria-ge by the power mechanism;

' the stop 122;

V Preferably, typewriter, as viewed in Figure 1, is prothe end ofitsstroke the bracket 11'? engages thecollar 116 and moves with the stop112-,until;

initial cut-off position,the collar116 permit- AstherheadilOnearsf thelatter and :the i ting adjustment to prevent the valve from strikingagainst the end walli'of the valve cylinder as aforesaid, The cylinder881m 1 thus exhausted through theport 98 and pipe "99'. Thelimiting'position of the head is de termined .by striking against thestop 122. By adjusting the stops 122 and 112 along the bar 123 and thevalve =rod108 respectively,

the typewriter or head- 10 may be brought to rest at any desired pointtransversely 1 of the platen 17 or thetcarriage' 1-3.

Since it is desirableto clear that the operator can place the nextledger, bill, etc., in place, it is desirable to move the carriage 13rearward-1y at a relatively high speed. However, it is not essentialthat the head 10 be restored to initialposition .in the the platen 17 rasquickly as possible after each operationrso same period of time since,the operator will be engaged *for a brief "period replacing the ledgersheets, etc., on the platen after the carriagehascleared the same.Therefor we preferably hrott-le down the'pressure of the fluidintroduced to the cylinder 88 by reason of the throttle valve 100. Thisvalve may be so regulated that the period of timer-occupied in restoringthe, head will overlap that required to move the carriagerearwardly'byan amount substantially equal to or less than i the time required by theoperator to change Thus, a slow moving power mechanism is provided forthe typewriter, which though not essential, is desirable to avoid shocksin starting and stopping the same. Furthermore, it will be noted thatthe restoring movement of the typewriter is against the action of thespring 30 the resistance of which is increased as the typewriteris-moved transversely of the car This effects a tendency to slow downthe velocity ,of the typewriter during-its final movement which furtherprevents any tendency to jar the typewriter when it is brought to restagainst The carriage 13V and head 10 being automatically restored totheir initial \ositi-ons, the foregoing cycle maybe repeated the roller11 to the'left of the vided with a guard shield 11 aiiording protectionagainst contactwith the fingers of the operator. The right front roller11 isprotected by the proximity of the machine frame It will be notedthat'we have provided motor orpoweractuated means for moving thecarriage and also the typewriter. Our

ling the fluid inlet to each of the cylinders, 7

applied to the piston,

invention further includes meanslfor quickly accelerating the carriageand speedily stopping the same at variable points, without shock or jarto the machine. Further,m0tor or power means is provided for relativelyslowly moving the typewriter or head against an increasing resistance. aI

By reason of the throttle valvescontrolmeans is provided for varying thespeed of travel of the carriage and head. The throttle valves alsoafford an initial high force to be followed by alesser force as the del.g

It should be understood that instead of restoring the carriageandjthetypewriter to their initial position, if desired, ourlmechanism could bearranged to actuate the parts from'theinitial position to theiroperative position. Essentially our invention'is di? rected to power ormotor actuated mechacharacter described comprising a platen, a

nism for relieving the operator from undue fatigue in the operation ofmachinesof the characteridescribed. Instead of a typewriter beingemployed as shown, it is obvious that our invention is equallyapplicableto other intelligence reproducing mechanisms. 1 i

3 While it is believed that from the 1 fore goingdescription, the natureand-advantage ofour invention will be readily understood, we desire tohave it understood that we donot limit ourselves to what is-herein shownand described and that such changes may be re sorted to when desired asfall within the scope of the claims. I i

What we claim as our invention is 1. In combination with a machine ofthe character described comprising a platen, a carriage movablelongitudinally over the;

platen between variable limits, a printing machine carried by thecarriage and movable transversely thereof between variable limits, ofmechanism for applying power to quickly accelerate and move the carriageover the platen between said limits, and" means for moving the printingmachine transversely thereof, and a single control member for actuatingthe carriage and printing machine moving means. V

2. In combination with a machine of the carriage movable longitudinallyover the platenbetween variable limits, a printing ma chine carried bythe carriage and movable transversely thereof, of mechanism for plyingpower to simultaneously move the carriage longitudinally of the plat-enand the printing machine transversely thereof.

3. A machine of the character described,

com risin a laten a carria e movable 1on gitudinally of the platenbetween variable lim its, a printing machine carried by the carriage andmovabletransversely thereof,saidcarriage adapted to be'manually movedforpiston travels along the cyliny 1 wardly of the wardly of the platento selective positions, a

cylinder fixed relative to said platen and ex tending transversely tothe travel of the printing machine, a piston operative insaid cylinderand connected to and means adapted to be carriage is in said forwardpositions for admitting fluid to saidcylinder to act on said piston forrestoring the carriageto a position rearwardly of the platen;

l. In amachiue of the character described,

the combination with a table, a carriage mov- 1 1 23010 thereoverbetween variablelimits and a printing machine mounted on said car-1l&g(3,i3l100311l)11ld weight of the PIlIlt-lllgT machine and carriagebeing relatively great, of means for applying power'to quickly move thecarriage selectively'between said limits,

move the carriage, l operated when the and energyabsorbing means fordecelerating 1 and varying the speed of travel of the carriage,

said last-named means always affording sub stantially the same initialforce for initially quickly accelerating the carriage. 5. A machine ofthe character describe comprisinga platen, a carriage movablelongitudinallyof the platen between variable limits, said carriageadapted to be manuallymoved forwardly of the'platen to selectivepositions, said carriageprovided with a brake for checking movement ofthecarriage, said brake adapted to be manually released for checkingmovement of the carriage, said brake adapted to be manually releasedwhen the; carriage is moved forwardly, means for applying powerto movethe carriage from said forward position to a position rearwardly of theplaten, said power means first acting to release said brake, and meansfor automatically applying the brake after a predetermined rearwardmovement of the carriage. 7. A machine of the character describedcoinprisinga platen, a carriage movable longitudinally of the platenbetween variable limits, said carriage adapted to be manually movedforwardly of the platen to selective positions, said carriage providedwith a brake for checking movement of the carriage, said brakeadapted tobe manually released when the carriage is moved forwardly, and means forapplying power to move the carriage from said forward position to aposition rearplaten, said power means first stopping the carriage aftera predetermined travel of the carriage, and means for actin to releasesaid brake means for sto 3- b 7 ping the anplic. ion or power to saidcarriage after predetermined movement thereoi, and 1 cans for thereafterautomatically ap alyin he brake tobring the carriage to rest. y 8. Ina-machine comprising a platen, a carriage movable longitudinally oftheplaten between variable limits, aprinting machine mounted on saidcarriage, a' cylinder fixed relative to the platen, a pistonoperabl inthe cylinder and connected to move the carriage, a source of fluid underpressure, a valve controlling the operation of the piston, a valve rod,said carriage and printing machine carried thereby adaptedtobe manuallymoved forwardly-of the platen to a plurality of selective'positions,

.means operative in any of said forward positions of the carriage foractuating the valve ,7 rod to admit fluid to act on the piston wherebytheicarriage is moved rearwardly of the platento clear the same. V

9. In a machine of the'character described I comprising a platen, acarriage movable 1ongitudinally of the platen between variable limits, aprinting machine mounted on said carriage, a cylinder fixed relative tothe platen, a pistonoperable in the cylinder and connected to move-thecarriage, a source of fluid under pressure, a valve controlling theoperation of the piston, a valve rod, said carriage and printlng machinecarried thereby adapted to be manually moved forwardly of the platen toa plurality ofselective positions,

means operativein any of said forward posltions of the carriage foractuating the valve rod to admit fluid to'act on the piston whereby thecarriage is moved 'rearwajrdly of the platen, and means acting on saidvalve rod after a predetermined position otsa'id carriage for Vactuating the valve rod to exhaust the cylinder.

comprising a platen, a carriage movable 1011",

git'udinally of the platen'between variable limits, a cylinder fixedrelative to. the platen,

a piston operable in the cylinder and cons nected to move the carriage,a source of fluid under pressure, a valve controlling the operation ofthe piston, a valve rod, said carriage adapted to be manuallymovedforw'ardly of the platen to a plurality of selective positions,means operative in any of said forward positions of the carriage foractuating the valve of the character described V '11 A machine of thecharacter described comprising a platen, a carriage movable thereover, atypewriter movable transversely of the carriage and carried thereby, acylinder e y t r i ge, a piston operatively associated with the cylinderand connected to move the typewriter in one direction, a valvecontrolling the action of the'piston, a valve rod, means for trippingthe valve rod to cause movement of the typewriter, and means operativeafter apredetermmed movement of the typewriter for actuating the valverod to exhaustthe cylinder. r l 12." In a machine of theclassvdescribed, the combination with a platen, a carriage movablethereover, and printing mechanism move able on the carriage, of meansfor applying power to simultaneously move the carriage and printingmechanism, and means for predetermining the relative speed of movementof said carriage and printing mechanism. 7

13. In a machine of the class described, the combination with a platen,a carriagemovable thereover, and a printing mechanism movable on thecarriage, of mechanism for applying power to move the carriage andprinting mechanism and including separate controlsfor predetermining therelative speed of movement of said carriage and printing mechanism,respectively. a a a In testimony whereof we faflix our signatures.

EDGET. CQPE. RALPH 1o. PARKINSON. I FREDERICK M. PRICE.

10. In a machine of the characterdescribed rod to admit fluid to act onthe pistonwhereby the carriage is moved rearwardly of the platen, meansacting on said valve rod after .a predetermined posltlon of saidcarriage for actuating the valve rodto exhaust the eylin der, a brakefor said carriage, and means for automatically applying the brake tobring the carriage to rest,said braking means being active after thecylinder has been :eX- hausted.v

